Full set of blank cards, IWC, Ocean Timepiece series, model: IW379503, Darwin's Adventure Chronograph Special Edition, is entirely crafted from vintage bronze. It features a 44mm black dial, luminous hour markers, dual sub-dial chronograph function, date display, an embedded bronze rotating chronograph bezel, an automatic helium release valve, and is equipped with the self-produced 89365 automatic winding movement. The back cover is engraved with the special edition logo. It comes with a quick-release sports strap and is water-resistant to 300 meters